You are writing a custom dictionary. The custom-dictionary class is named MyDictionary. You need to ensure that the dictionary is type safe. Which code segment should you use?

171.

You are writing a custom dictionary. The custom-dictionary class is named MyDictionary. You need to ensure that the dictionary is type safe.
Which code segment should you use?

class MyDictionary : Dictionary<string, string>

class MyDictionary : HashTable

class MyDictionary : IDictionary

class MyDictionary { ... }Dictionary<string, string> t = new Dictionary<string, string>();MyDictionary dictionary = (MyDictionary)t;

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